US20080024979A1 - Airflow direction controlling apparatus - Google Patents
Airflow direction controlling apparatus Download PDFInfo
- Publication number
- US20080024979A1 US20080024979A1 US11/736,591 US73659107A US2008024979A1 US 20080024979 A1 US20080024979 A1 US 20080024979A1 US 73659107 A US73659107 A US 73659107A US 2008024979 A1 US2008024979 A1 US 2008024979A1
- Authority
- US
- United States
- Prior art keywords
- motor
- controlling apparatus
- frame
- overheating
- danger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20154—Heat dissipaters coupled to components
Definitions
- the present invention relates to airflow direction controlling apparatuses, and particularly to an airflow direction controlling apparatus for a fan in a computer.
- thermal modules are widely used to remove heat from the CPUs.
- a conventional thermal module includes a heat sink secured on a CPU and a CPU fan secured on the heat sink. Heat generated by the CPU is conducted by the heat sink and then dissipated away from the CPU by the CPU fan.
- thermal module designs typically fail to take into account the cooling of other electronic components within computers such as memories, hard disks, and graphic cards to keep manufacturing costs down. When temperatures of such electronic components get too high, the performance of the computers may be impaired.
- An airflow direction controlling apparatus for selectively directing airflow of a fan toward one of at least two electronic components in danger of overheating in a computer.
- the controlling apparatus includes a frame configured for being arranged near an outlet of the fan, at least one blade pivotably mounted to the frame and driven by a motor, at least two thermal sensors configured for detecting temperatures of the at least two electronic components in the computer, and a control module electronically connected to the at least two sensors and the motor.
- the control module receives the detected temperatures from the sensors, determines if an electronic component is in danger of overheating, and controls the motor to rotate the at least one blade to a desired position where airflow of the fan blows toward the electronic component in danger of overheating, to quickly dissipate the heat generated by the electronic component.
- FIG. 1 is an exploded, isometric view of an airflow direction controlling apparatus, in accordance with a preferred embodiment of the present invention
- FIG. 2 is an assembled view of FIG. 1 ;
- FIG. 3 is an assembled view of FIG. 1 , but viewed from another aspect
- FIG. 4 is a profile view of airflow of a fan blowing toward an electronic component in danger of overheating
- FIG. 5 is a profile view of airflow of the fan blowing toward another electronic component in danger of overheating.
- FIG. 6 is a circuit diagram of the controlling apparatus of FIG. 1 .
- an airflow direction controlling apparatus in accordance with a preferred embodiment of the present invention includes a frame 10 , five blades 20 pivotably mounted to the frame 10 , a motor 30 , a control module 40 , three thermal sensors 50 , 51 , and 52 , and a pinion rack 60 .
- the frame 10 includes two opposite side walls 11 , 12 , and two opposite connecting walls 13 , 14 connecting the side walls 11 , 12 .
- Five support portions 15 a each defining a pivot hole 16 a therein extend evenly from the side wall 11 .
- Another five support portions 15 b each defining a pivot hole 16 b therein corresponding to the five support portions 15 a extend from the side wall 12 .
- a plurality of retaining portions 17 extend down from the connecting walls 13 , 14 and the side wall 11 of the frame 10 , for mounting the controlling apparatus to an enclosure (not shown) of a computer via engaging in through holes of the enclosure.
- a fan 100 may be accommodated at a space between the frame 10 and the enclosure.
- Each blade 20 includes a pivot 21 at the bottom thereof. Two opposite ends of the pivot 21 engage in pivot holes 16 a and 16 b of corresponding support portions 15 a and 15 b . One end of the pivot 21 adjacent the side wall 12 includes a pinion 22 .
- a bracket 80 is formed beside the connecting wall 13 of the frame 10 to accommodate the motor 30 and the control module 40 therein.
- the motor 30 includes a shaft 31 therein.
- the shaft 31 includes a pinion 32 at an end thereof.
- the motor 30 is mounted to the bracket 80 where the pinion 32 of the motor 30 is arranged in alignment with the pinions 22 of the blades 20 .
- the control module 40 and the sensors 50 , 51 , 52 are mounted to a control circuit board 70 .
- the control circuit board 70 is mounted to the bracket 80 adjacent the motor 30 .
- the bracket 80 includes a partition board 81 adjacent to and parallel to the connecting wall 13 .
- a protrusion 90 defining a first limiting slot 91 extends up from an end of the connecting wall 14 adjacent to the side wall 12 .
- the partition board 81 defines a second limiting slot 82 in alignment with the first limiting slot 91 .
- the limiting slots 91 , 92 are aligned with the pivot holes 16 b .
- the pinion rack 60 defining a plurality of teeth is inserted through the first limiting slot 91 and the second limiting slot 82 to engage with the pinion 32 of the motor 30 and the pinions 22 of the blades 20 .
- the pinion rack 60 is moved back and forth via the pinion 32 of the motor 30 and guided by the first limiting slot 91 and the second limiting slot 82 .
- the control module 40 includes a microprocessor 41 , a reset circuit 42 , trigger switches S 1 , S 2 , S 3 , and a transistor Q 1 connected to the microprocessor 41 .
- the sensors 50 , 51 , 52 include input terminals respectively connected to three electronic components 110 , 111 , 112 to monitor their temperatures, power supply terminals connected to a power supply terminal Vcc 1 , and output terminals respectively connected to input/output ports P 3 . 4 , P 3 . 5 , P 3 . 6 of the microprocessor 41 .
- a power port Vcc of the microprocessor 41 is connected to the power supply terminal Vcc 1 .
- the trigger switches S 1 , S 2 , S 3 are respectively connected to input/output ports P 3 . 1 , P 3 . 2 , P 3 . 3 of the microprocessor 41 .
- the transistor Q 1 includes a base connected to an input/output port P 3 . 0 of the microprocessor 41 , a collector connected to a power supply terminal Vcc 2 , and an emitter connected to the motor 30 .
- the sensors 50 , 51 , 52 respectively detect temperatures of the three electronic components 110 , 111 , 112 . Temperatures are then provided to the microprocessor 41 by the sensors 50 , 51 , and 52 . The microprocessor 41 determines if an electronic component is in danger of overheating by comparing the detected temperatures with a predetermined temperature or temperatures.
- the microprocessor 41 controls the trigger switch corresponding to the electronic component, which is in danger of overheating, to switch off, causing the transistor Q 1 to turn on for a predetermined period of time, making the motor 30 rotate the blades 20 via the rack 60 to a desired position where airflow of the fan 100 blows toward the corresponding electronic component, to quickly dissipate the heat generated by the electronic component.
- FIG. 4 shows a profile view of airflow of the fan 100 blowing toward the electronic component 110 when the electronic component 110 is in danger of overheating
- FIG. 5 shows a profile view of airflow of the fan 100 blowing toward the electronic component 112 when the electronic component 112 is in danger of overheating.
- the number of the sensors and switch as disclosed above can be adjusted according to the number of the electronic components it is desired to monitor and cool when needed.
- the number of the blades as disclosed above can also be adjusted according to the size of the fan 100 .
Abstract
Description
- 1. Field of the Invention
- The present invention relates to airflow direction controlling apparatuses, and particularly to an airflow direction controlling apparatus for a fan in a computer.
- 2. Description of Related Art
- With the continued development of computer technology, electronic components in computers such as central processing units (CPUs) are generating more and more heat that needs to be dissipated immediately to avoid damage to the circuitry. Therefore, thermal modules are widely used to remove heat from the CPUs. A conventional thermal module includes a heat sink secured on a CPU and a CPU fan secured on the heat sink. Heat generated by the CPU is conducted by the heat sink and then dissipated away from the CPU by the CPU fan. However, thermal module designs typically fail to take into account the cooling of other electronic components within computers such as memories, hard disks, and graphic cards to keep manufacturing costs down. When temperatures of such electronic components get too high, the performance of the computers may be impaired.
- What is needed, therefore, is an airflow direction controlling apparatus which can selectively direct airflow of a fan toward an overheated electronic component in a computer.
- An airflow direction controlling apparatus for selectively directing airflow of a fan toward one of at least two electronic components in danger of overheating in a computer is provided. In a preferred embodiment, the controlling apparatus includes a frame configured for being arranged near an outlet of the fan, at least one blade pivotably mounted to the frame and driven by a motor, at least two thermal sensors configured for detecting temperatures of the at least two electronic components in the computer, and a control module electronically connected to the at least two sensors and the motor. The control module receives the detected temperatures from the sensors, determines if an electronic component is in danger of overheating, and controls the motor to rotate the at least one blade to a desired position where airflow of the fan blows toward the electronic component in danger of overheating, to quickly dissipate the heat generated by the electronic component.
- Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description of preferred embodiment when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is an exploded, isometric view of an airflow direction controlling apparatus, in accordance with a preferred embodiment of the present invention; -
FIG. 2 is an assembled view ofFIG. 1 ; -
FIG. 3 is an assembled view ofFIG. 1 , but viewed from another aspect; -
FIG. 4 is a profile view of airflow of a fan blowing toward an electronic component in danger of overheating; -
FIG. 5 is a profile view of airflow of the fan blowing toward another electronic component in danger of overheating; and -
FIG. 6 is a circuit diagram of the controlling apparatus ofFIG. 1 . - Referring to
FIGS. 1 , 2, 3, 4 and 5, an airflow direction controlling apparatus in accordance with a preferred embodiment of the present invention includes aframe 10, fiveblades 20 pivotably mounted to theframe 10, amotor 30, acontrol module 40, threethermal sensors pinion rack 60. - The
frame 10 includes twoopposite side walls walls side walls portions 15 a each defining apivot hole 16 a therein extend evenly from theside wall 11. Another fivesupport portions 15 b each defining apivot hole 16 b therein corresponding to the fivesupport portions 15 a extend from theside wall 12. A plurality of retainingportions 17 extend down from theconnecting walls side wall 11 of theframe 10, for mounting the controlling apparatus to an enclosure (not shown) of a computer via engaging in through holes of the enclosure. Afan 100 may be accommodated at a space between theframe 10 and the enclosure. - Each
blade 20 includes apivot 21 at the bottom thereof. Two opposite ends of thepivot 21 engage inpivot holes corresponding support portions pivot 21 adjacent theside wall 12 includes apinion 22. - A
bracket 80 is formed beside the connectingwall 13 of theframe 10 to accommodate themotor 30 and thecontrol module 40 therein. Themotor 30 includes ashaft 31 therein. Theshaft 31 includes apinion 32 at an end thereof. Themotor 30 is mounted to thebracket 80 where thepinion 32 of themotor 30 is arranged in alignment with thepinions 22 of theblades 20. Thecontrol module 40 and thesensors control circuit board 70. Thecontrol circuit board 70 is mounted to thebracket 80 adjacent themotor 30. - The
bracket 80 includes apartition board 81 adjacent to and parallel to the connectingwall 13. Aprotrusion 90 defining a first limitingslot 91 extends up from an end of the connectingwall 14 adjacent to theside wall 12. Thepartition board 81 defines a secondlimiting slot 82 in alignment with the first limitingslot 91. Thelimiting slots 91, 92 are aligned with thepivot holes 16 b. Thepinion rack 60 defining a plurality of teeth is inserted through the first limitingslot 91 and the second limitingslot 82 to engage with thepinion 32 of themotor 30 and thepinions 22 of theblades 20. Thepinion rack 60 is moved back and forth via thepinion 32 of themotor 30 and guided by the first limitingslot 91 and the second limitingslot 82. - Referring to
FIG. 6 , thecontrol module 40 includes a microprocessor 41, areset circuit 42, trigger switches S1, S2, S3, and a transistor Q1 connected to the microprocessor 41. Thesensors electronic components motor 30. - In application, the
sensors electronic components sensors motor 30 rotate theblades 20 via therack 60 to a desired position where airflow of thefan 100 blows toward the corresponding electronic component, to quickly dissipate the heat generated by the electronic component. For examples,FIG. 4 shows a profile view of airflow of thefan 100 blowing toward theelectronic component 110 when theelectronic component 110 is in danger of overheating, andFIG. 5 shows a profile view of airflow of thefan 100 blowing toward theelectronic component 112 when theelectronic component 112 is in danger of overheating. - The number of the sensors and switch as disclosed above can be adjusted according to the number of the electronic components it is desired to monitor and cool when needed. The number of the blades as disclosed above can also be adjusted according to the size of the
fan 100. - The embodiments were chosen and described in order to explain the principles of the invention and their practical application so as to enable others skilled in the art to utilize the invention and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present invention pertains without departing from its spirit and scope. Accordingly, the scope of the present invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN2006100618090A CN101114185B (en) | 2006-07-26 | 2006-07-26 | Air flow automatically guiding device |
CN200610061809 | 2006-07-26 | ||
CN200610061809.0 | 2006-07-26 |
Publications (2)
Publication Number | Publication Date |
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US20080024979A1 true US20080024979A1 (en) | 2008-01-31 |
US7656664B2 US7656664B2 (en) | 2010-02-02 |
Family
ID=38986020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/736,591 Expired - Fee Related US7656664B2 (en) | 2006-07-26 | 2007-04-18 | Airflow direction controlling apparatus |
Country Status (2)
Country | Link |
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US (1) | US7656664B2 (en) |
CN (1) | CN101114185B (en) |
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US20090323280A1 (en) * | 2008-06-27 | 2009-12-31 | Wistron Corporation | Electronic apparatus |
US20100097754A1 (en) * | 2008-10-22 | 2010-04-22 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Computer enclosure with airflow guide |
US20110096501A1 (en) * | 2009-10-26 | 2011-04-28 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device and electronic device using the same |
US20110181702A1 (en) * | 2009-07-28 | 2011-07-28 | Carl Zeiss Surgical Gmbh | Method and system for generating a representation of an oct data set |
US20110240630A1 (en) * | 2010-04-06 | 2011-10-06 | Inergy Automotive Systems Research (Societe Anonyme) | Heater for a vehicular fluid tank, motor vehicle comprising same, and method for heating a vehicular fluid tank |
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US20140273790A1 (en) * | 2008-10-20 | 2014-09-18 | Dynalloy, Inc | Active material enabled pressure release valves and methods of use |
US20150046423A1 (en) * | 2013-08-12 | 2015-02-12 | Td Ameritrade Ip Company, Inc. | Refining Search Query Results |
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US20180024253A1 (en) * | 2015-02-17 | 2018-01-25 | Koninklijke Philips N.V. | Medical imaging detector |
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US11212945B2 (en) * | 2019-05-31 | 2021-12-28 | Hewlett Packard Enterprise Development Lp | System airflow variable configuration |
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US9507391B2 (en) * | 2011-11-28 | 2016-11-29 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Heat sink with orientable fins |
TW201327115A (en) * | 2011-12-22 | 2013-07-01 | Hon Hai Prec Ind Co Ltd | Airflow blocking window |
US10222768B2 (en) | 2013-11-12 | 2019-03-05 | EcoVent Systems Inc. | Method of and system for determination of measured parameter gradients for environmental system control |
US9854335B2 (en) * | 2013-11-12 | 2017-12-26 | EcoVent Systems Inc. | Method of and system for automatically adjusting airflow |
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US8875534B2 (en) | 2008-06-27 | 2014-11-04 | Wistron Corporation | Electronic apparatus having an airflow regulating device |
US8464961B2 (en) * | 2008-06-27 | 2013-06-18 | Wistron Corporation | Electronic apparatus |
US20090323280A1 (en) * | 2008-06-27 | 2009-12-31 | Wistron Corporation | Electronic apparatus |
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Also Published As
Publication number | Publication date |
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CN101114185B (en) | 2010-12-29 |
US7656664B2 (en) | 2010-02-02 |
CN101114185A (en) | 2008-01-30 |
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